Refrigerating container



:1 1932. c. s. ANDREws 1,883,450

REFRIGERATING CONTAINER Filed June 13. 1950 2 Sheets-Sheet 1 PatentedOct. 18, 1932 UNITED STATES PATENT OFFICE CHAMPE S. ANDREWS, OF NORTHCHATTANOOGA, TENNESSEE, ASSIGNOR TO CARTON DEVELOPMENT CORPORATION, OFNEW YORK, N. Y., A CORPORATION OF DELAWARE REFRIGERATING CONTAINERApplication filed June 13,

packing, storing and shipping perishable goods and other merchandisewhich is required to be kept under constant refrigeration.

One object of the invention, amongst others, is to produce acontainerwhich is suitable and economical to produce for volume use andproduction. Another object is to provide a container which may bereadily assembled or set up so as to facilitate the packing operation.Another object is to provide a design of container in such a form thateven when composed of comparatively lightweight paper-board, thematerial preferably employed, the container when set up will be rigid soas to provide a useful container for refrigeration and shippingpurposes.

The improved container is especially aplicable for use when carbondioxide or dryice is employed as the refrigerating medium but it will beunderstood that the improved container may also be used when common iceis employed as the refrigerating medium. In the latter case the materialof which the container is composed would naturally be waterproof. -Indesigning the container means are provided to tightly close the endsthereof to prevent, as much as possible, leakage of vapor or waterdepending on the nature of the refrigerating medium employed.

In carrying out the invention the container comprises two separatemembers one of which is the outer member and the other is the innermember, the latter being suspended within the outer member in such amanner that a space is left between the inner and the outer member toprovide a non-conductor of heat between the said members of which theinner member contains the merchandise which is kept in a constant stateof refrigeration or frozen by means of the refrigerating medium, forexample, dry-ice. Pockets or receptacles are provided at each end of thea container for vholding the dry-ice and said pockets or receptacles aretightly closed at the outer ends so as to confine the vapors passing offfrom the ice within the outer container and which vapors will, passfrom'said and 5.

1930. Serial No. 460,864.

receptacles into the space or jacket which surrounds the inner member.

An embodiment of the invention will be hereinafter more fully describedwith reference to the accompanying drawings, where- 1n- Figure 1 is aperspective view showing the complete container with one end in the openposition; 4

Figure 2 is a transvrse section of said container;

Figure3 is a longitudinal section of the container with both ends in theclosed position; I

Figure 4 is a plan view of the blank of which the outer containingmember is com posed; and

Figure 5 is a plan view of the blank of which the inner member of thecontainer is composed.

In the embodiment of the invention illustrated by the drawings referredto, the improved container is composed of two separate members one ofwhich is the outer member and the other is the inner member. The lattermember is adapted to contain the goods or merchandise and when thecontainer is packed ready for shipment this container is suspendedwithin the outer member. The said members 1 and 2 are each composed of aseparate blank as illustrated in Figures 4 In these figures the blank Aforms the outer container and blank B forms the inner container. Theseblanks are substantially the same with the exception that blank A isprovided with means for holding inner member in its suspended position.The said blanks are both divided into a plurality of parallel sectionsdesignated by the numerals 1', 2, 3 and 4. In each instance the sections3 have extending therefrom end sections 5 which are connected to thesection 3 by double folding lines 6 with anintegral strip 7 between saidlines. In blank A the section 5 has an opening 8 to receive the ends ofthe inner member B when the container is packed for shipping or storage.The corresponding sections 5 in blank B do not have the opening-'8 forin practice it is required that this inner container should be tightlythe r closed. In both blanks flaps 9 extend laterally from the sections1 and these flaps have tuck-in ends 10 whereby the two con tainers maybe effectually closed and further to ensure tight closure of the ends ofthe containers, the sections 5 are provided with folding strips 11. 1

In the manufacture of the improved con tainers the blanks are first cutout and creased on the horizontal lines 12 and vertical lines 6 and 13so as'to define the sectlons or portions which are to be folded. Theblanks so formed are then partly assembled and glued in an automaticmachine and in which operation the blank is folded so that the glue lap14 connected to section 1 will come under the edge 15 of the section 4.The blanks are then ready to be set up for use and in which operationthe extension sections 5 are folded into the receptacle formed by thesections 1, 2, 3 and 4. which constitute the sides of the differentcontainers. In the blank for the outer member, the sections 5 will liewithin the container so that the ends of the inner container whenlocated slightly protrude and leave a space forming a pocket orreceptacle between said ends and the folded-in flaps 9. This pocket isutilized as a receptacle for the refrigerating medium, preferablydry-ice, as previously stated.

It will be noted that the side walls of the inner member do not come incontact with the side walls of the outer member. A space 16 is therebyleft and this space will be filled with the vapors passing off from therefrigcrating medium and this space filled with the low temperaturevapors provides a refrigerating jacket around the inner member whichcontains the frozen merchandise such, for example, as frozen fruit,"ice-cream and the like.

It-is desirable that the ends of the inner member or carton should riotfit the receiving opening 8 too tightly for the vapors from the dry-icemust be allowed to enter the space 16 through the slight opening whichis left at' the point of support of the inner carton within the outercarton or container. It is further desirable to tightly close the saidcontainers against admission of air from the exterior and the escape ofthe low temperature vapors from the container. So as to ensure furthertight closing, the flaps 17 are provided which fold inwardly toadditionally close said ends. Furthermore by means of said closingdevices the outer container may be hermetically sealed by anyordinarymeans. 7

Various modifications may obviously be ..made in the construction of thecarton or containing members and it is to be understood that anymodification coming-fairly within the terms of the appended claims shallbe covered thereby.

I claim:

LIA refrigerating container of the class described composed of inner andouter receptacles, fold in flaps at each end of said outer receptacle,said inner receptacle extending through an opening in each of said fold1n flaps whereby the outer walls of said inner receptacle are maintainedout of contact with the inner walls of said outer receptacle.

' 2. A refrigerating container of the class described comprising anouter receptacle, an inner receptacle, fold in flaps at each end of saidouter receptacle, said inner receptacle extending through an opening insaid fold in flaps whereby the walls of said inner receptacle are heldout of contact at all points thereof with the walls of said outermember.

3. A refrigerating container of the class described composed of innerand outer receptacles, said inner receptacle being suspended within saidouter receptacle, means for effecting such suspension comprising suports at each end of the outer receptac e whereby the outer walls ofsaid inner receptacle are maintained out of contact with the inner wallsof said outer receptacle and said suspending means comprising folding-inflaps with an opening therein to receive the ends of said innerreceptacle. 4.. In a container of the class described comprising anouter receptacle and an inner receptacle, said inner receptacle beingsuspended within said outer receptacle, means for suspendin said innerreceptacle, said means comprising fold in flaps on said outer receptaclethrough which the ends of said inner receptacle project, and a cover forsaid outer receptacle providing also a cover for said container. 5. Acontainer of the class described comprising aii outer receptacle; aninner rece tacle suspended within said outer receptac e, a pocket ateach end of said outer member adapted to contain a refrigerating medium,a cover for closing theend of said outer receptacle, fold in flaps ateach end of said outer receptacle having openings therein, said innerreceptacle extending through the openings in said fold in flaps, and anopening in said inner receptacle accessible through sald outerreceptacle.

6. -A container of the class described comprisingan outer receptacle, aninner material containing receptacle member, a receptacle or pocket ateach end of sand outer receptacle adapted to contain a refrigerating inhand.

y OHAMPE S.- ANDREWS.

